127243280

素因数分解:

$2^4\times 5^1\times {\mathrm{1590541}}^1$

素因数の和:1590554

約数の個数: 20

約数和(自身を含む): 295840812

約数和(自身を除く): 168597532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1590541, 3181082, 6362164, 7952705, 12724328, 15905410, 25448656, 31810820, 63621640, 127243280]

約数ペア:

[(1, 127243280), (2, 63621640), (4, 31810820), (5, 25448656), (8, 15905410), (10, 12724328), (16, 7952705), (20, 6362164), (40, 3181082), (80, 1590541)]